Custom Intake for Disco II
So as I posted on the What did you do to your disco post. Trying to take the airbag out for a good cleaning the woven portion broke. So I decided to custom build an intake for my disco instead to get rid of the restrictive airbox and intake plumbing with once again restrictive baffles.
Everything I ordered was from Summit so I got free expedited shipping. First came the 3.5" piping. Parts used are from spectre. First Part is 3.5" 90 degree bend with 6" straight pipe part number 95990. Next up is a 45 degree bend part number 9549. A 25mm air fitting part number 9714 for the SAI. Lastly 3, 3.5" Silicone Coupling Adpters part number 9571.
Now that you have all the parts you attach the 90 degree bend to throttle body and mark the location to drill for the SAI. Once you have removed the 90 degree bend and drilled for the SAI you can attach the Air fitting and reconnect the 90 bend to the throttle body.
Put silicone coupler on and attach the MAF then put the 45 degree bend in place and attach the 3.5" filter of your choice.
Now I haven't got to burn through a full tank yet, but what I can say is that the truck is much more responsive. It also finally sounds like there is a V8 under the hood. For fuel consumption, I use an app for my iPhone called Automatic that allows me to track mileage and mpg. So far I have seen 2-3 more mpg on common routes. The real challenge though will be keeping my foot out of it now that it sounds so much better.
Everything I ordered was from Summit so I got free expedited shipping. First came the 3.5" piping. Parts used are from spectre. First Part is 3.5" 90 degree bend with 6" straight pipe part number 95990. Next up is a 45 degree bend part number 9549. A 25mm air fitting part number 9714 for the SAI. Lastly 3, 3.5" Silicone Coupling Adpters part number 9571.
Now that you have all the parts you attach the 90 degree bend to throttle body and mark the location to drill for the SAI. Once you have removed the 90 degree bend and drilled for the SAI you can attach the Air fitting and reconnect the 90 bend to the throttle body.
Put silicone coupler on and attach the MAF then put the 45 degree bend in place and attach the 3.5" filter of your choice.
Now I haven't got to burn through a full tank yet, but what I can say is that the truck is much more responsive. It also finally sounds like there is a V8 under the hood. For fuel consumption, I use an app for my iPhone called Automatic that allows me to track mileage and mpg. So far I have seen 2-3 more mpg on common routes. The real challenge though will be keeping my foot out of it now that it sounds so much better.
Last edited by thesoundguru; Apr 13, 2015 at 11:58 AM.

Nice! How much did that come out to? It's similar to the one I made a while back, though it looks like you used pipe bends and I used silicon coupler bends.
Here's a link with better pictures and a description: http://thelandroverchronicles.tumblr...ly-better-than
Everyone on reddit's /r/landrover wanted to tell me that it wouldn't flow any better than stock and I'd see no improvement. Bah! There was an immediate and noticeable difference. I see you didn't have to extend your MAF plug, which is a plus. I need to get some more black tube to go over mine. I am surprised you saw a difference in gas mileage, I didn't see any. I have noticed, however, that mine gets better mileage when I put my foot into it more. Kinda counter intuitive, but I got 14mpg on my last tank and I had the pedal to the floor from every red light.
Last edited by Alex_M; Apr 13, 2015 at 10:47 AM.
Not much more than mine then. I think I ended up paying like $75 said and done. I second the notion that it's worth it though, even just for the sound if nothing else. I love hearing it suck air going down the highway.
I would suggest wrapping the tubing in a heat shield insulation. I might do something like this but with the wrap to see if I can keep the temps down. Also a bent aluminum plate to block off the filter from the engine could give you more of a cold air intake function.
No issues after ~8k miles.
I don't know, I didn't take recording pre-intake for the temp. I can tell you, I made a plastic heat shield (can be seen in the link I posted) that made about zero difference on the intake temp.


